Short answer
Yes, cooked pheasant is safe for dogs as long as it's lean and boneless. Check for any shot pellets if it was wild game. Offer small amounts of plain water and watch for mild stomach upset over the next few hours. Call your regular vet if you notice vomiting or unusual behavior.
Pheasant — Food safety facts
Safe to share · Dogs · full breakdown on the linked food page
Lean cooked pheasant is safe. Watch for shot pellets in wild birds.
The full verdict, portion guidance and serving notes are collected on the Pheasant food facts page.